Valve-escapement for reservoirs



UNITED STATES *PATENT OFFICE..

GEORGE F. BROWN, OF PHILADELPHIA, vAND HAROLD VAN DUZEE, OF J ENKINTOWN, PENNSYLVANIA.

VALVE-ESCAPEMENT FORRESERVOIRS, TANNKS,

SPEQIFICATION forming part of Letters Patent No. 508,162, dated-November *7, 1893.

` 'Application tied August assez. stagisti/4.2579. cromada.)

Jenkintown, county of Montgomery, State of Pennsylvania, citizens of the United States, have invented certain new and useful Im` provements in Valve-Escapements for Resern voirs, Tanks, andvSimilar Articles, of which the following is a specification.

adapted to permit ot' one or more discharges from a tank or reservoir without refilling the same. Y

In the accompanying drawings, Figure 1 is a vertical section.l Fig. 2 is a top view. Fig. 3 is a detail of a two-toothed escapement, and Fig. 4 is a detail of a single-toothed escapement.

Same letters indicate similar parts in the dierent drawings. i

A is a flushing tank of any desiredconstruction provided with a flushingl vor discharge pipe B, leading from box C which in this instance, contaiussuficient water for an afterflow, that is allowed to enter the pipe B through the apertures, a. Communication between this box and the body of the tank takes place through the valve seat D, situated directly over the pipe, B, and Opened or closed by the valve E, which when closed occupies the position shown in full lines in Fig. 1, and when open is lifted to the position shown indotted line in Fig. 1.

Stretching across the top of the tank is the bar F upon which all the moving parts are supported as follows: The carriage G extends transversely across th'ebar F, and is adjustable by slot c and clamped by the bolt b. To prevent lateral swaying of the carriage the rack, d, is provided on the upper surface of the bar F and teeth, e, are provided on the 'under side of the carriage to mesh with the teeth of the rack. On this carriage is supported the lever, H, pivoted at f. One end of this lever is connected to the valve E before mentioned, and the other end carries an extension piece I to the end ofwhich is attached a chain J. This extension piece I is adjusted so that it may project over the edge of the tank either at the end as shown in full lines in Fig. 2 or over either side as shown in dotted lines in Fig. 2. When arranged in the desired position by the mechanic in fitting up'the tank, the connection is made rigid by turning up the bolt b', which is set through the semi-circular rack d', the teeth of which engage the under side of the leverI and prevent lateral movement. The valve E is norg mally'closed and the lever H, in the position The object of our invention is to provide a valve escapement which is constructedand shown in full lines in Fig. 1. When the chain J is pulled the lever H and the valve E are raised into the positions shown in dotted lines in Fig. 1.

There is nothing novel in the operation ot' the extension piece and the lever, when once fixed, as thus far described, the novelty consisting in the adjustable connection between the extension piece and the lever, which enables the tank to be more readily fitted by the mechanic to the position which it is intended to occupy with the extension piece projecting from the right or left side of the tank, or straight out-from the end. To do this ordinarily requires riveting, soldering, or some other work to be performed by the mechanic in itting up the tank, whereas in this case, it is simply necessary to turn the extension piece in the desired direction and then screw up the bolt b. Fig. 2,' that when the extension piece -proj ects straight over the end of the tank, it is pushed in,-while when it-projects over the side, it is pulled out. This'extensibility is attained by having the extension piece run through a slot in the bolt b.

A peculiar feature of the lever H is the projecting tooth t, the function of which will. be hereinafter. explained.

The tank is provided with a oat K, secured by the bolt b to the `swinging arm L, which is pivoted by the bolt g to the end of the carriage G, and is thus adapted. to rise and fall without disturbing the position of the carriage. When the tank is full to the water line s, the float is in the upper position, shown in dotted lines in Fig. l. When the tank is half empty and the Water only reaches lthe line s', the float drops tol the lower dotted line in position in Fig. 1. When the tank is It will be noticed from IOO full lines `in Fig. 1. The arm L is provided with the-slots, i, so *that the position to which the float is allowed to fall is capable of adj ustment by changing the position of the bolt b. To the upper end of the arm L is secured a toothed escapement,`M, provided with one or more teeth t. These teeth are shown in detail in Figs. 3 and 4; in onecase, as a twotoothed escapement, in the other case as a single-toothed escapement. Almost any desired number of teeth may be employed, the number of teeth depending upon the number of discharges which the tank is required t make with a given quantity of water. These teeth are preferably made with 4their upper surfaces forming the arc of a circle, of which the pin g, is the center; and when more than one fto'othfis employed aspace v, Fig. 3,-should be 1left between 'each two teeth suiticiently `large to let the tooth t, of the lever H, drop 'lhe under side of "the i tooth, t, is preferably concave `to t the con-f through said space.

vex-surfaceof the teeth t.

tloatlK slightly. Asl-soon asthertooth thas -nisen high enough =to clear thewteethvt, .ther float K and-'arm L fall back -by their `town, weight till l-the ball `rests `upon Vthe isurfacefof therwater- :in the itank. `'Ihefchain J being released, the flever H and the yalveEytend to1fa1l byltheir weight to shut olfthe flushing pipe 1B, butare prevented ither'efroln bythe under side of, the tooth, ,Linifits; downward motion coming against theconvex upper surffacetoflthe first tooth t', upon whichit therefore rests and the -Valve is therebysheld open.

As the water 4is i all this time Arunning -out through the flushing pipe, `B,`:the oatK, `falls with the Water. This motion draws the=con` Vex surface of the 'tooth tffromly-undcrthe tooth t, and when the space fv, Fig. 3,is:reached, the'tooth t falls throughit and,.allows -thelever H, andthe valve E to fallzandfrestupon the valve-seat D, thus stoppingyany further flowfrom the body of the tank andleaving all lconditions 4ready for the .next i operation; The water in the box C thereupon I,escapes through the openings, apinto the flushing pipeB. 'llhe float K has reached thenniddle position-shown in Fig. l and the water has dropped to :the line s. Thispositionibrings the second tooth t. in position to `-be displaced bylthe Ltooth v,when the :latter is raised=by a-second pullI of the chain lwhenthe process of suspending the lever H and LvalNe E by the `convex upper surface of `the tooth tis repeated. Should but two teeth t` be provided,'the tank will `haveubeen emptied by the time the valve E is allowed to fall for the second time upon the valve seat D; but as before stated, if it is desired to make a tank full of water, serve for more than two dis; charges a corresponding number of teeth t will be pro vided and the devices adj usted accordingly. Should the tank be refilled at any time after one or more discharges the iloat K will rise to its initial position in the usual way, and the toothed escapement, M, will also be restored to Iits uinitial position with the first tooth t inthe path of the tooth t.

It is obvious that a displacement of the'escapement M and with it the iioat supporting arm L, to whichfsaidescapement is-secured, is required,fto allow the passageof the tooth on the `valve-operati-ng leverl, not-only 1n its downward .motion to close :the val-veybut alsofin `:its npWard-vmOtiOD, as the escapement vmust be fbackl in Lthepatho'f the tcoth,rt,after Athe said `tooth has tinishedits upwardxmotion. Otherwise, there would-'be nothing-to hold up the valve operating'lever2H,and thevalve-E would close at once. i It-isobviousthatwhen itis desired to have `the same "amount :of water give more fthantwofdischargea its escapement willf require additionalwteeth t,'unt1l their `number correspondsfto the l.number of discharges required. It is obvious also that 1f it is desired to Vary the 4volumefof water to be -discharged loy-` al givenw-escapement, `the bolt 'b". must 4be changed v'tosome otherof lthe slots Ilin :the i'ioat lisulziportilng arm, fzthereby changing the proportion between the distance Afrom ycenter pin ytothe:surface-fof@ teeth of 'escapement and the distance Jfro1n=centerpin tof center-of float.

"We claim- 1. vA flushing tankv orf-Lother `reservoir, pro- IOO fvided withal` float mounteduupon.afswinging arm, the :upperendotwhichearries atoothed escapement,:a lever operated bythe pull-rod and @carryizngi attooth i whicha'controls the Jaction of-A saidftoothed escapement,a-nd 'with a valve,1the closing/otfwlrichwis controlled by themovementoffthetetlrotsaidescapement, substantially :as :shown fand; for the purposes speci-tied. l

2. A flushing tank or `other-'ffreservoilgprovided with a .valve .operating i levery mounted upon a suitable fcanriage', a "swinging extensionzpiece adjfustably connected withisaid le- Ver, audrawsemicircular rack; ithe fteeth 1 of whichl en gage' the f underside off said :extension piecefwherebyilateral imovement:thereof` fisprevented, substantiallyras fshown' ,for the purposes zspecified.

I 3; Awflushingfta'nk fori-other lreservoir, .provided with a valve operating Llever `mounted uponl a suitable marriage, 'andowithl a i ftooth projecting therefrom,- afoat supporting farm pivotedto:saidlcarriage anda'toothedescapement mountedupon said loat'supporting arm -in ltheapathlof fthe toothon said valve operating lever, wherebysaid valveoperating lever IIO 4. An esoapement foicontrolling theelos;v

ing of the valve of a flushing. tank or othei reservoiigwhioh consists of a iioat supporting' arm, having one or more teeth thee'on anda valve operating lever, having one or more i teeth thereon, adapted to engage with the teeth on said arm both in the lip and vdown 1xnovements of said lever, whereby said movements are prevented, until said eseapement 1s displaced by the'motion of said iloat supporting arm substantially as'pshown and for the purposes specified.

' GEO. F. BROWN.

HAROLDM VAN- DUZEE.

llVitnesses:`

MORRIS R. BoCKIUs, J. R. SA'YRE. 

